Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 150 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) stores data online
2. 2.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a pencil sharpener
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) an app-controlled bulb
4. 4.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain wall switch
5. 5.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi doorbell camera
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
7. 7.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
10. 10.What does the microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
11. 11.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
13. 13.What does the sensor do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
14. 14.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
19. 19.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
20. 20.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) sensor (d) cloud server
21. 21.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
25. 25.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
28. 28.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
29. 29.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a wind-up clock
30. 30.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
31. 31.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a paper calendar
32. 32.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
35. 35.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) actuator (d) cloud server
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi

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